Index: src/includes/modules/order_total/ot_coupon.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>ISO-8859-15
===================================================================
--- src/includes/modules/order_total/ot_coupon.php	(revision 36390ee90978493a04dfcc03ac14cc4263c9d0b5)
+++ src/includes/modules/order_total/ot_coupon.php	(revision )
@@ -489,8 +489,7 @@
 									
 									//$tod_amount = ($valid_array[$p]['products_price'] * $tax_rate) / 100 * $t_gm_ratio;
 									$t_gm_reduced_price = $valid_array[$p]['products_price'] - $od_amount * $t_gm_ratio;
-									$t_gm_reduced_price_tax = (($t_gm_reduced_price / (1 + $tax_rate / 100)) - $t_gm_reduced_price) * (-1);
-									$t_gm_reduce_tax = ((($valid_array[$p]['products_price'] / (1 + $tax_rate / 100)) - $valid_array[$p]['products_price']) * (-1)) - $t_gm_reduced_price_tax;
+									$t_gm_reduce_tax = $valid_array[$p]['products_price'] * ($tax_rate / 100) - $t_gm_reduced_price * ($tax_rate / 100);
 									$order->info['tax_groups'][$tax_desc] -= $t_gm_reduce_tax;
 									$order->info['tax'] -= $t_gm_reduce_tax;